HIGHpublic-safe

CVE-2026-106556

NVD: Backstage is an open framework for building developer portals. NVD: Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by configuration bypass in techdocs mkdocs.yml sanitization. NVD: Insufficient validation of MkDocs configuration during TechDocs generation could allow an authenticated user who can register or modify documentation sources to execute arbitrary commands in the build environment.

CVSS
7.7 Severity
HIGH EPSS
0.0026 (16) KEV
-

Source-published summary

Possible impact

Source describes authenticated boundary. Possible impact: This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for authenticated boundary.

Affected context

vendor/product: linuxfoundation / backstage; affected version context: 1.51.0

Remediation / advisory

Patch confirmed by source text; fixed version context: versions.

Why it matters

Source describes authenticated boundary. Possible impact: This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for authenticated boundary.; CVSS 7.7 (HIGH); EPSS percentile 16; not listed in KEV; Patch confirmed by source text; fixed version context: versions; sources: NVD, OSV, Vendor Advisory.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

authenticated boundary

Impact tags

authenticated boundary review

Urgency reasons

CVSS HIGHaffected product presentvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV / Vendor Advisory description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.